Function attach

test/unit/test-runtime.js:1827–1869

(docUrl)

        });

        function attach(docUrl) {
          const hostElement = win.document.createElement('div');
          win.document.body.appendChild(hostElement);
          const importDoc = win.document.implementation.createHTMLDocument('');
          const shadowRoot = createShadowRoot(hostElement);
          const ampdoc = new AmpDocShadow(win, docUrl, shadowRoot);

          ampdocServiceMock
            .expects('installShadowDoc')
            .withArgs(
              docUrl,
              env.sandbox.match((arg) => arg == getShadowRoot(hostElement))
            )
            .returns(ampdoc)
            .atLeast(0);
          ampdocServiceMock
            .expects('getAmpDoc')
            .withExactArgs(
              env.sandbox.match((arg) => arg == getShadowRoot(hostElement))
            )
            .returns(ampdoc)
            .atLeast(0);

          const amp = win.AMP.attachShadowDoc(hostElement, importDoc, docUrl);
          const viewer = getServiceForDoc(ampdoc, 'viewer');
          const broadcastReceived = env.sandbox.spy();
          viewer.onBroadcast(broadcastReceived);
          const onMessage = env.sandbox.stub();
          amp.onMessage(function (eventType, data) {
            if (eventType == 'ignore') {
              return Promise.resolve();
            }
            return onMessage(eventType, data);
          });
          return {
            hostElement,
            amp,
            ampdoc,
            viewer,
            broadcastReceived,
            onMessage,
          };
        }

        it('should broadcast to all but sender', () => {
          doc1.viewer.broadcast({test: 1});